netdev - [PATCH net-next v1] net: stmmac: Drop redundant skb_mark_for

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Message-Id: <20250117062805.192393-1-0x1207@gmail.com>
Date: Fri, 17 Jan 2025 14:28:05 +0800
From: Furong Xu <0x1207@...il.com>
To: netdev@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	xfr@...look.com,
	Furong Xu <0x1207@...il.com>
Subject: [PATCH net-next v1] net: stmmac: Drop redundant skb_mark_for_recycle() for SKB frags

After commit df542f669307 ("net: stmmac: Switch to zero-copy in
non-XDP RX path"), SKBs are always marked for recycle, it is redundant
to mark SKBs more than once when new frags are appended.

Signed-off-by: Furong Xu <0x1207@...il.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index d99ad77a8005..edbf8994455d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -5644,9 +5644,6 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
 			skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
 					buf->page, buf->page_offset, buf1_len,
 					priv->dma_conf.dma_buf_sz);
-
-			/* Data payload appended into SKB */
-			skb_mark_for_recycle(skb);
 			buf->page = NULL;
 		}
 
@@ -5656,9 +5653,6 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
 			skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
 					buf->sec_page, 0, buf2_len,
 					priv->dma_conf.dma_buf_sz);
-
-			/* Data payload appended into SKB */
-			skb_mark_for_recycle(skb);
 			buf->sec_page = NULL;
 		}
 
-- 
2.34.1